diff --git a/.travis.yml b/.travis.yml
index 23c1a181ee..f2486aa99c 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,12 +13,16 @@ before_install:
   - export CHROME_BIN=chromium-browser
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
-  - sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
-  - npm cache clean --force
-  - rm -rf node_modules/
+  # - sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
+  # - npm cache clean --force
+  # - rm -rf node_modules/
 
 install:
   - npm run setup --debug
 
 script:
   - npm run doc
+
+cache:
+  directories:
+    - "node_modules"